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  1. 02 Nov, 2020 5 commits
  3. 31 Oct, 2020 2 commits
  5. 28 Oct, 2020 19 commits
  7. 27 Oct, 2020 1 commit
  9. 26 Oct, 2020 13 commits
    • Bob Pearson's avatar
      RDMA/rxe: Remove unused RXE_MR_TYPE_FMR · eeed6965
      Bob Pearson authored 
      This is a left over from the past. It is no longer used.

Link: https://lore.kernel.org/r/20201009165112.271143-1-rpearson@hpe.comSigned-off-by: default avatarBob Pearson <rpearson@hpe.com>
Signed-off-by: default avatarJason Gunthorpe <jgg@nvidia.com>
      eeed6965
    • Joe Perches's avatar
      RDMA: Convert sysfs kobject * show functions to use sysfs_emit() · 3c6bff3c
      Joe Perches authored 
      Done with cocci script:

@@
identifier k_show;
identifier arg1, arg2, arg3;
@@
ssize_t k_show(struct kobject *
-	arg1
+	kobj
	, struct kobj_attribute *
-	arg2
+	attr
	, char *
-	arg3
+	buf
	)
{
	...
(
-	arg1
+	kobj
|
-	arg2
+	attr
|
-	arg3
+	buf
)
	...
}

@@
identifier k_show;
identifier kobj, attr, buf;
@@

ssize_t k_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf)
{
	<...
	return
-	sprintf(buf,
+	sysfs_emit(buf,
	...);
	...>
}

@@
identifier k_show;
identifier kobj, attr, buf;
@@

ssize_t k_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf)
{
	<...
	return
-	snprintf(buf, PAGE_SIZE,
+	sysfs_emit(buf,
	...);
	...>
}

@@
identifier k_show;
identifier kobj, attr, buf;
@@

ssize_t k_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf)
{
	<...
	return
-	scnprintf(buf, PAGE_SIZE,
+	sysfs_emit(buf,
	...);
	...>
}

@@
identifier k_show;
identifier kobj, attr, buf;
expression chr;
@@

ssize_t k_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf)
{
	<...
	return
-	strcpy(buf, chr);
+	sysfs_emit(buf, chr);
	...>
}

@@
identifier k_show;
identifier kobj, attr, buf;
identifier len;
@@

ssize_t k_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf)
{
	<...
	len =
-	sprintf(buf,
+	sysfs_emit(buf,
	...);
	...>
	return len;
}

@@
identifier k_show;
identifier kobj, attr, buf;
identifier len;
@@

ssize_t k_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf)
{
	<...
	len =
-	snprintf(buf, PAGE_SIZE,
+	sysfs_emit(buf,
	...);
	...>
	return len;
}

@@
identifier k_show;
identifier kobj, attr, buf;
identifier len;
@@

ssize_t k_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf)
{
	<...
	len =
-	scnprintf(buf, PAGE_SIZE,
+	sysfs_emit(buf,
	...);
	...>
	return len;
}

@@
identifier k_show;
identifier kobj, attr, buf;
identifier len;
@@

ssize_t k_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf)
{
	<...
-	len += scnprintf(buf + len, PAGE_SIZE - len,
+	len += sysfs_emit_at(buf, len,
	...);
	...>
	return len;
}

@@
identifier k_show;
identifier kobj, attr, buf;
expression chr;
@@

ssize_t k_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf)
{
	...
-	strcpy(buf, chr);
-	return strlen(buf);
+	return sysfs_emit(buf, chr);
}

Link: https://lore.kernel.org/r/7761c1efaebb96c432c85171d58405c25a824ccd.1602122880.git.joe@perches.comSigned-off-by: default avatarJoe Perches <joe@perches.com>
Reviewed-by: default avatarJason Gunthorpe <jgg@nvidia.com>
Acked-by: default avatarJack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: default avatarJason Gunthorpe <jgg@nvidia.com>
      3c6bff3c
    • Joe Perches's avatar
      RDMA: Convert sysfs device * show functions to use sysfs_emit() · 1c7fd726
      Joe Perches authored 
      Done with cocci script:

@@
identifier d_show;
identifier dev, attr, buf;
@@

ssize_t d_show(struct device *dev, struct device_attribute *attr, char *buf)
{
	<...
	return
-	sprintf(buf,
+	sysfs_emit(buf,
	...);
	...>
}

@@
identifier d_show;
identifier dev, attr, buf;
@@

ssize_t d_show(struct device *dev, struct device_attribute *attr, char *buf)
{
	<...
	return
-	snprintf(buf, PAGE_SIZE,
+	sysfs_emit(buf,
	...);
	...>
}

@@
identifier d_show;
identifier dev, attr, buf;
@@

ssize_t d_show(struct device *dev, struct device_attribute *attr, char *buf)
{
	<...
	return
-	scnprintf(buf, PAGE_SIZE,
+	sysfs_emit(buf,
	...);
	...>
}

@@
identifier d_show;
identifier dev, attr, buf;
expression chr;
@@

ssize_t d_show(struct device *dev, struct device_attribute *attr, char *buf)
{
	<...
	return
-	strcpy(buf, chr);
+	sysfs_emit(buf, chr);
	...>
}

@@
identifier d_show;
identifier dev, attr, buf;
identifier len;
@@

ssize_t d_show(struct device *dev, struct device_attribute *attr, char *buf)
{
	<...
	len =
-	sprintf(buf,
+	sysfs_emit(buf,
	...);
	...>
	return len;
}

@@
identifier d_show;
identifier dev, attr, buf;
identifier len;
@@

ssize_t d_show(struct device *dev, struct device_attribute *attr, char *buf)
{
	<...
	len =
-	snprintf(buf, PAGE_SIZE,
+	sysfs_emit(buf,
	...);
	...>
	return len;
}

@@
identifier d_show;
identifier dev, attr, buf;
identifier len;
@@

ssize_t d_show(struct device *dev, struct device_attribute *attr, char *buf)
{
	<...
	len =
-	scnprintf(buf, PAGE_SIZE,
+	sysfs_emit(buf,
	...);
	...>
	return len;
}

@@
identifier d_show;
identifier dev, attr, buf;
identifier len;
@@

ssize_t d_show(struct device *dev, struct device_attribute *attr, char *buf)
{
	<...
-	len += scnprintf(buf + len, PAGE_SIZE - len,
+	len += sysfs_emit_at(buf, len,
	...);
	...>
	return len;
}

@@
identifier d_show;
identifier dev, attr, buf;
expression chr;
@@

ssize_t d_show(struct device *dev, struct device_attribute *attr, char *buf)
{
	...
-	strcpy(buf, chr);
-	return strlen(buf);
+	return sysfs_emit(buf, chr);
}

Link: https://lore.kernel.org/r/7f406fa8e3aa2552c022bec680f621e38d1fe414.1602122879.git.joe@perches.comSigned-off-by: default avatarJoe Perches <joe@perches.com>
Reviewed-by: default avatarJason Gunthorpe <jgg@nvidia.com>
Signed-off-by: default avatarJason Gunthorpe <jgg@nvidia.com>
      1c7fd726
    • Jason Gunthorpe's avatar
      RDMA: Remove AH from uverbs_cmd_mask · 676a80ad
      Jason Gunthorpe authored 
      Drivers that need a uverbs AH should instead set the create_user_ah() op
similar to reg_user_mr(). MODIFY_AH and QUERY_AH cmds were never
implemented so are just deleted.

Link: https://lore.kernel.org/r/11-v1-caa70ba3d1ab+1436e-ucmd_mask_jgg@nvidia.comSigned-off-by: default avatarJason Gunthorpe <jgg@nvidia.com>
      676a80ad
    • Jason Gunthorpe's avatar
      RDMA: Remove uverbs cmds from drivers that don't use them · 628c02bf
      Jason Gunthorpe authored 
      Allowing userspace to invoke these commands is probably going to crash
these drivers as they are not tested and not expecting to use them on a
user object.

For example pvrdma touches cq->ring_state which is not initialized for
user QPs.

These commands are effected:

- IB_USER_VERBS_CMD_REQ_NOTIFY_CQ is ibv_cmd_req_notify_cq() in
  rdma-core, only hfi1, ipath and rxe calls it.

- IB_USER_VERBS_CMD_POLL_CQ is ibv_cmd_poll_cq() in rdma-core, only
  ipath and hfi1 calls it.

- IB_USER_VERBS_CMD_POST_SEND/RECV is ibv_cmd_post_send/recv() in
  rdma-core, only ipath and hfi1 call them.

- IB_USER_VERBS_CMD_POST_SRQ_RECV is ibv_cmd_post_srq_recv() in
  rdma-core, only ipath and hfi1 calls it.

- IB_USER_VERBS_CMD_PEEK_CQ isn't even implemented anywhere

- IB_USER_VERBS_CMD_CREATE/DESTROY_AH is ibv_cmd_create/destroy_ah() in
  rdma-core, only bnxt_re, efa, hfi1, ipath, mlx5, orcrdma, and rxe call
  it.

Link: https://lore.kernel.org/r/10-v1-caa70ba3d1ab+1436e-ucmd_mask_jgg@nvidia.comSigned-off-by: default avatarJason Gunthorpe <jgg@nvidia.com>
      628c02bf
    • Jason Gunthorpe's avatar
      RDMA/core Remove uverbs_ex_cmd_mask · bd2a40cc
      Jason Gunthorpe authored 
      No driver sets it, and the core code sets a maximum mask, simply remove
it.

Disabled operations are now handled either by having a NULL ops pointer,
or by having the common driver callbacks check for unsupported extended
attributes.

Link: https://lore.kernel.org/r/9-v1-caa70ba3d1ab+1436e-ucmd_mask_jgg@nvidia.comSigned-off-by: default avatarJason Gunthorpe <jgg@nvidia.com>
      bd2a40cc
    • Jason Gunthorpe's avatar
      RDMA: Check create_flags during create_qp · 1f11a761
      Jason Gunthorpe authored 
      Each driver should check that the QP attrs create_flags is supported.
Unfortuantely when create_flags was added to the QP attrs the drivers were
not updated. uverbs_ex_cmd_mask was used to block it - even though kernel
drivers use these flags too.

Check that flags is zero in all drivers that don't use it, remove
IB_USER_VERBS_EX_CMD_CREATE_QP from uverbs_ex_cmd_mask. Fix the error code
to be EOPNOTSUPP.

Link: https://lore.kernel.org/r/8-v1-caa70ba3d1ab+1436e-ucmd_mask_jgg@nvidia.comSigned-off-by: default avatarJason Gunthorpe <jgg@nvidia.com>
      1f11a761
    • Jason Gunthorpe's avatar
      RDMA: Check flags during create_cq · 1c407cb5
      Jason Gunthorpe authored 
      Each driver should check that the CQ attrs is supported. Unfortuantely
when flags was added to the CQ attrs the drivers were not updated,
uverbs_ex_cmd_mask was used to block it. This was missed when create CQ
was converted to ioctl, so non-zero flags could have been passed into
drivers.

Check that flags is zero in all drivers that don't use it, remove
IB_USER_VERBS_EX_CMD_CREATE_CQ from uverbs_ex_cmd_mask.

Fixes: 41b2a71f ("IB/uverbs: Move ioctl path of create_cq and destroy_cq to a new file")
Link: https://lore.kernel.org/r/7-v1-caa70ba3d1ab+1436e-ucmd_mask_jgg@nvidia.comSigned-off-by: default avatarJason Gunthorpe <jgg@nvidia.com>
      1c407cb5
    • Jason Gunthorpe's avatar
      RDMA: Check attr_mask during modify_qp · 26e990ba
      Jason Gunthorpe authored 
      Each driver should check that it can support the provided attr_mask during
modify_qp. IB_USER_VERBS_EX_CMD_MODIFY_QP was being used to block
modify_qp_ex because the driver didn't check RATE_LIMIT.

Link: https://lore.kernel.org/r/6-v1-caa70ba3d1ab+1436e-ucmd_mask_jgg@nvidia.comSigned-off-by: default avatarJason Gunthorpe <jgg@nvidia.com>
      26e990ba
    • Jason Gunthorpe's avatar
      RDMA: Check srq_type during create_srq · 652caba5
      Jason Gunthorpe authored 
      uverbs was blocking srq_types the driver doesn't support based on the
CREATE_XSRQ cmd_mask. Fix all drivers to check for supported srq_types
during create_srq and move CREATE_XSRQ to the core code.

Link: https://lore.kernel.org/r/5-v1-caa70ba3d1ab+1436e-ucmd_mask_jgg@nvidia.comSigned-off-by: default avatarJason Gunthorpe <jgg@nvidia.com>
      652caba5
    • Jason Gunthorpe's avatar
      RDMA: Move more uverbs_cmd_mask settings to the core · 44ce37bc
      Jason Gunthorpe authored 
      These functions all depend on the driver providing a specific op:

- REREG_MR is rereg_user_mr(). bnxt_re set this without providing the op
- ATTACH/DEATCH_MCAST is attach_mcast()/detach_mcast(). usnic set this
  without providing the op
- OPEN_QP doesn't involve the driver but requires a XRCD. qedr provides
  xrcd but forgot to set it, usnic doesn't provide XRCD but set it anyhow.
- OPEN/CLOSE_XRCD are the ops alloc_xrcd()/dealloc_xrcd()
- CREATE_SRQ/DESTROY_SRQ are the ops create_srq()/destroy_srq()
- QUERY/MODIFY_SRQ is op query_srq()/modify_srq(). hns sets this but
  sometimes supplies a NULL op.
- RESIZE_CQ is op resize_cq(). bnxt_re sets this boes doesn't supply an op
- ALLOC/DEALLOC_MW is alloc_mw()/dealloc_mw(). cxgb4 provided an
  (now deleted) implementation but no userspace

All drivers were checked that no drivers provide the op without also
setting uverbs_cmd_mask so this should have no functional change.

Link: https://lore.kernel.org/r/4-v1-caa70ba3d1ab+1436e-ucmd_mask_jgg@nvidia.comSigned-off-by: default avatarJason Gunthorpe <jgg@nvidia.com>
      44ce37bc
    • Jason Gunthorpe's avatar
      RDMA: Remove elements in uverbs_cmd_mask that all drivers set · c074bb1e
      Jason Gunthorpe authored 
      This is a step toward eliminating uverbs_cmd_mask. Preset this list in the
core code. Only the op reg_user_mr wasn't already being required from the
drivers.

Link: https://lore.kernel.org/r/3-v1-caa70ba3d1ab+1436e-ucmd_mask_jgg@nvidia.comSigned-off-by: default avatarJason Gunthorpe <jgg@nvidia.com>
      c074bb1e
    • Jason Gunthorpe's avatar
      RDMA: Remove uverbs_ex_cmd_mask values that are linked to functions · b8e3130d
      Jason Gunthorpe authored 
      Since a while now the uverbs layer checks if the driver implements a
function before allowing the ucmd to proceed. This largely obsoletes the
cmd_mask stuff, but there is some tricky bits in drivers preventing it
from being removed.

Remove the easy elements of uverbs_ex_cmd_mask by pre-setting them in the
core code. These are triggered soley based on the related ops function
pointer.

query_device_ex is not triggered based on an op, but all drivers already
implement something compatible with the extension, so enable it globally
too.

Link: https://lore.kernel.org/r/2-v1-caa70ba3d1ab+1436e-ucmd_mask_jgg@nvidia.comSigned-off-by: default avatarJason Gunthorpe <jgg@nvidia.com>
      b8e3130d
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